CN211344058U - Nut locking type high-sealing valve - Google Patents
Nut locking type high-sealing valve Download PDFInfo
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- CN211344058U CN211344058U CN201922385997.8U CN201922385997U CN211344058U CN 211344058 U CN211344058 U CN 211344058U CN 201922385997 U CN201922385997 U CN 201922385997U CN 211344058 U CN211344058 U CN 211344058U
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Abstract
The utility model discloses the innovation provides a high sealing valve through nut locking. The nut locking type high-sealing valve comprises a valve seat, a valve rod and a valve core, wherein the valve rod and the valve core are integrally arranged, a shaft sleeve is arranged in the valve seat, the valve rod penetrates through the shaft sleeve to be connected with an external hand wheel, an upper inner groove and a lower inner groove are respectively arranged in the valve seat at the upper end of the valve core and the valve seat at the lower end of the valve core, a locking nut, a disc spring and a sealing assembly which are sleeved on the valve rod are sequentially arranged in the upper inner groove from top to bottom, the locking nut is in threaded connection with the valve rod, and a fixing ring, a disc spring and a sealing assembly which are sleeved on the valve. According to the nut locking type high-sealing valve, the valve rod can reversely rise upwards by downwards rotating the locking nut, the locking nut downwards extrudes the disc spring in the upper inner groove, and the fixing ring in the lower inner groove upwards extrudes the disc spring in the lower inner groove, so that the sealing assembly is pressed to achieve the purpose of high sealing.
Description
Technical Field
The utility model belongs to the valve field especially relates to a high sealing valve of nut locking formula.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and the existing valve types comprise a butterfly valve, a ball valve, a water stop valve, a fluorine lining valve and the like; there are deficiencies in these valves on the market today, such as: the sealing assemblies are arranged at the valve rod above the valve core and the valve rod below the valve core, the two sealing assemblies are independent, each sealing assembly extrudes the sealing ring onto the valve rod through the elastic force generated by compressing and fixing the disc spring, the elastic force of the disc spring cannot be adjusted in the mode, and if the disc spring is loosened, the sealing ring and the valve rod cannot be extruded more tightly; therefore, the sealing requirement of the existing butterfly valve is difficult to meet.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the utility model discloses the innovation provides a high sealing valve through nut locking.
The nut locking type high-sealing valve comprises a valve seat, a valve rod and a valve core, wherein the valve rod and the valve core are integrally arranged, a shaft sleeve is arranged in the valve seat, the valve rod penetrates through the shaft sleeve to be connected with an external hand wheel, an upper inner groove and a lower inner groove are respectively arranged in the valve seat at the upper end of the valve core and the valve seat at the lower end of the valve core, a locking nut, a disc spring and a sealing assembly which are sleeved on the valve rod are sequentially arranged in the upper inner groove from top to bottom, the locking nut is in threaded connection with the valve rod, and a fixing ring, a disc spring and a sealing assembly which are sleeved on the valve.
The sealing assembly comprises a conical sealing seat and a conical sealing ring, the pressure surface of the conical sealing ring inclines towards one side of the outer ring valve seat, the contact surface between the conical sealing ring and the valve rod is a second sealing surface, and the pressure surface of the conical sealing seat is matched with the pressure surface of the conical sealing ring.
The bottom of the conical sealing ring is provided with a circular groove, an O-shaped ring sleeved on the valve rod is arranged in the circular groove, and a contact surface between the O-shaped ring and the valve rod is a first sealing surface.
The hand wheel includes inner circle and outer lane, inner circle center department is equipped with the screw, it holds the hole to be equipped with a plurality of between the inner circle of hand wheel and the outer lane, it is the bowl form to hold the hole, it is the arc angle to hold four angles in hole, the edge of holding the hole has the protection muscle, the protection muscle has two initiating terminals, two initiating terminals are located the outer lane.
The number of the holding holes is 5, ribs for connecting the inner ring and the outer ring are arranged between every two holding holes, and holding balls are arranged on the outer sides of the outer rings corresponding to the ribs.
The inner ring is deviated to one side relative to the outer ring.
The edge of the screw hole on the inner ring is provided with a screw hole bulge.
The utility model provides a high sealed butterfly valve of nut locking formula through rotating lock nut downwards, and the valve rod can be opposite rises to, and lock nut will go up the interior dish spring downward extrusion of inside groove, and the interior fixed ring of inside groove can upwards extrude the dish spring of inside groove down to compress tightly seal assembly and realize the purpose of high seal.
Drawings
Fig. 1 is an overall structure diagram of a butterfly valve in various valves.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a structural view of the hand wheel.
Detailed Description
Because the existing valve is provided with the sealing components at the positions of the valve rod 2 above the valve core 3 and the valve rod 2 below the valve core 3, the two sealing components are independent, each sealing component extrudes the sealing ring to the valve rod 2 through the elastic force generated by compressing and fixing the disc spring 9 respectively, the elastic force of the disc spring 9 cannot be adjusted in the mode, and if the disc spring 9 becomes loose, the sealing ring and the valve rod 2 cannot be extruded more tightly; therefore the utility model relates to a high sealed butterfly valve of this kind of nut locking formula, concrete structure is shown in fig. 1-2, including disk seat 1, valve rod 2 and case 3, case 3 is fixed to be set up in the centre of valve rod 2, be equipped with axle sleeve 4 in the disk seat 1, axle sleeve 4 is passed to the upper end of valve rod 2 and is connected with outside hand wheel 5, be equipped with inside groove 6 and lower inside groove 7 in the disk seat 1 of case 3 lower extreme respectively in the disk seat 1 of case 3 upper end, go up the inside groove 6 in from top to bottom in proper order including establishing the lock nut 8 on valve rod 2, dish spring 9 and seal assembly, lock nut 8 and 2 threaded connection of valve rod, establish the solid fixed ring 10 on valve rod 2 including the cover from bottom to top in proper order in the inside groove 7 down.
The sealing principle is as follows: by rotating the locknut 8 downwards, the locknut 8 is in threaded connection with the valve rod 2, the valve rod 2 reversely rises upwards, the disc spring 9 is pressed downwards by the locknut 8, the disc spring 9 is pressed upwards by the fixing ring 10 in the lower inner groove 7, the conical sealing seat 11 is pressed downwards, as the pressing surface 111 and the pressure receiving surface 121 are inclined, as shown in fig. 2, the pressing surface 111 has a vertical downward pressing force acting on the pressure receiving surface 121, the pressure receiving surface 121 divides the force into a leftward force and a downward force, the leftward force tightly presses the conical sealing ring 12 on the valve rod 2, the second sealing surface 122 is tighter with the valve rod 2, the downward force presses the O-ring 14 in the circular groove 13 at the bottom of the conical sealing ring 12, the O-ring 14 is deformed by extrusion, the first sealing surface 141 is tighter with the valve rod 2, so as to form two sealing points, liquid is not easy to permeate along the valve rod 2, thereby affecting the service life of the valve stem 2.
The sealing assembly comprises a conical sealing seat 11 and a conical sealing ring 12, a pressure-bearing surface 121 of the conical sealing ring 12 inclines towards one side of the outer ring valve seat 1 (the conical sealing ring 12 is shaped like a regular Chinese character 'ba' on the inclined surfaces of the two sides when viewed from a front cross section), a contact surface between the conical sealing ring 12 and the valve rod 2 is a second sealing surface 122, and a pressure-bearing surface 111 of the conical sealing seat 11 is matched with the pressure-bearing surface 121 of the conical sealing ring 12 (the pressure-bearing surfaces 111 of the two sides of the conical sealing seat 11 are shaped like an inverted Chinese character 'ba' when viewed from a front cross section.
The bottom of the conical sealing ring 12 is provided with a circular groove 13, an O-shaped ring 14 sleeved on the valve rod 2 is arranged in the circular groove 13, and the contact surface between the O-shaped ring 14 and the valve rod 2 is a first sealing surface 141.
As shown in fig. 3, the hand wheel 5 includes an inner ring 51 and an outer ring 52, a screw hole 18 is provided at the center of the inner ring 51, a plurality of holding holes 15 are provided between the inner ring 51 and the outer ring 52 of the hand wheel 5, in order to enable a worker to reduce the damage of the hand wheel 5 to the hand when the worker extends into the holding holes 15 to hold the hand wheel 5 to work, and improve the comfort, the holding holes 15 of the hand wheel 5 are set in a bowl shape, four corners of the holding holes 15 are arc corners 20, fingers are attached to the arc corners 20 inside the holding holes 15, so as to reduce the damage of the edges to the finger pressure, the edges of the holding holes 15 are provided with protection ribs 19, the protection ribs 19 are provided with two start ends 21, the two start ends 21 are located on the outer ring 52, a certain distance is provided between the two start ends 21 of the protection ribs 19, when the fingers are held in the holding holes 15, the inner sides of the fingers are attached to the distance between the two start ends 21 of the, therefore, the pressure of the hand wheel 5 can be reduced when the fingers exert force, and the comfort can be improved.
In order to prevent the worker from slipping when screwing the valve, a rib 15 connecting the inner ring 51 and the outer ring 52 is arranged between each holding hole 15, and a holding ball 17 is arranged on the outer side of the outer ring 52 corresponding to the rib 15.
In order to save labor for the worker, the inner ring 51 is biased to one side with respect to the outer ring 52, and since the inner ring 51 and the outer ring 52 of the hand wheel 5 are provided with a height difference, the force applied by the worker can be reduced.
The edge of the screw hole 18 on the inner ring 51 is provided with a screw hole bulge 22, so that a worker can sleeve the bulge surface on the valve to rotate the hand wheel, the contact surface of the screw hole 18 and the valve is increased, the force applied by the worker can be smaller, and the labor can be saved for the worker.
The valve rod can reversely rise upwards by rotating the lock nut downwards, so that the mode of compressing the tightness degree of the upper sealing assembly and the lower sealing assembly can be applied to various valves, such as butterfly valves, ball valves and fluorine-lined valves.
Claims (7)
1. The utility model provides a nut locking formula high seal valve, includes disk seat (1), valve rod (2) and case (3), its characterized in that: valve rod (2) and case (3) set up as an organic whole, be equipped with axle sleeve (4) in disk seat (1), valve rod (2) pass axle sleeve (4) and are connected with outside hand wheel (5), be equipped with inside groove (6) and lower inside groove (7) in disk seat (1) of case (3) upper end and the disk seat (1) of case (3) lower extreme respectively, go up inside groove (6) in from top to bottom including establishing lock nut (8), dish spring (9) and the seal assembly on valve rod (2) in proper order, lock nut (8) and valve rod (2) threaded connection, including fixed ring (10), dish spring (9) and the seal assembly of cover on valve rod (2) from bottom to top in proper order in inside groove (7) down.
2. The nut locking type high-sealing valve according to claim 1, wherein: the sealing assembly comprises a conical sealing seat (11) and a conical sealing ring (12), a pressure receiving surface (121) of the conical sealing ring (12) inclines towards one side of an outer ring valve seat (1), a contact surface between the conical sealing ring (12) and a valve rod (2) is a second sealing surface (122), a pressure applying surface (111) of the conical sealing seat (11) is matched with the pressure receiving surface (121) of the conical sealing ring (12), and the pressure applying surface (111) is tightly attached to the pressure receiving surface (121).
3. The nut locking type high-sealing valve according to claim 2, wherein: the bottom of the conical sealing ring (12) is provided with a circular groove (13), an O-shaped ring (14) which is sleeved on the valve rod (2) is arranged in the circular groove (13), and a contact surface between the O-shaped ring (14) and the valve rod (2) is a first sealing surface (141).
4. The nut locking type high-sealing valve according to claim 1, wherein: hand wheel (5) include inner circle (51) and outer lane (52), inner circle (51) center department is equipped with screw (18), it holds hole (15) to be equipped with a plurality of between inner circle (51) of hand wheel (5) and outer lane (52), it is the bowl form to hold hole (15), it is arc angle (20) to hold four angles in hole (15), the edge of holding hole (15) has protection muscle (19), protection muscle (19) have two initiating terminals (21), two initiating terminals (21) are located outer lane (52).
5. The nut locking type high-sealing valve according to claim 4, wherein: the number of the holding holes (15) is 5, ribs (16) for connecting the inner ring (51) and the outer ring (52) are arranged between the holding holes (15), and holding balls (17) are arranged on the outer sides of the outer rings (52) corresponding to the ribs (16).
6. The nut locking type high-sealing valve according to claim 4, wherein: the inner ring (51) is offset to one side with respect to the outer ring (52).
7. The nut locking type high-sealing valve according to claim 4, wherein: the edge of the screw hole (18) on the inner ring (51) is provided with a screw hole bulge (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385997.8U CN211344058U (en) | 2019-12-26 | 2019-12-26 | Nut locking type high-sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922385997.8U CN211344058U (en) | 2019-12-26 | 2019-12-26 | Nut locking type high-sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211344058U true CN211344058U (en) | 2020-08-25 |
Family
ID=72104739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922385997.8U Active CN211344058U (en) | 2019-12-26 | 2019-12-26 | Nut locking type high-sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211344058U (en) |
-
2019
- 2019-12-26 CN CN201922385997.8U patent/CN211344058U/en active Active
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